Motor-cycle.



No. 818,609. PATENTED APR. 24, 1906.

E. BUTIKOFER.

MOTOR CYCLE.

APPLICATION FILED $213.9, 1906.

UNIT iii.) STATUES PATENT OFFICE.

MOTOR-"CYCLE.

Specification of Letters Patent.

PatentedApril 24, 1906.

application filed February 9,1906. Serial No. 300,328.

To aid whom it may concern.-

Be it known that I, Emunn B citizen of the Republic of Switz .r l,residing at Biol, Switzerland, have invented new and useful Im rovcmentsin Motor-Cyctes, of which the following is a specification.

My invention motor-cycles, and mor especi lly to imp rovements in thedriving mechanism for motorcycles; and it consists, essentially, of theconstruction, arrangement, and cooperation of parts, as will hereinafterbe .lnlly described with reference to the acconmanying drawings, ofwhich Figure 1 represents a horizontal section through the driving-wheeland the actuatin mechanism. Fig. is a sectional line A B of Fig. 1.

There have been repeated attempts to arrange in rnotorcycles within thedrivingwheel one or more cylinder-n1otors, in the latter case withcylinders the pistons of which operate in opposite directions, and thereis already known a construction in which a motor is arranged. Within thehub of the drivingwheel, the cylinder-axis of which coincides with therotary axis of the driving-wheel.

reference to a driving-wheel with internally-arranged driving mechanism.In this construction two opposed motors with two fly-wheels are soarranged within the fixed driving-wheel axle, which at the same timeserves as motor-casing, that the common middle plane of the motorscoincides with the middle lane of the axle of the drivingqvheel, and t emotors are disposed symn'ietrical to the plane of motion of thedrivingwheel, the middle line of the crank-shaft coinciding with theplane of motion of the driving-wheel and the cylinders being arrangedsymmetrically to each other at either side and the syn unetrically-disposed frame-tubing being used for conducting the gases.

In the drawings, a is the rigid axle, formed y the casing of the motor,in the ends of vhich latter the cylinders b are located. In hesecylinders reciprocate the two pistons 0, inch are connected, by means ofthe pitmen to the crank-shaft f, cranked to one lumred and eightydegrees and directly secured the fly-wheels g. The trunnions 7t of uselly-whcels are journalcd in bearings i the casing a. One of thesetrunnions h U'll Koran, a

g view on.

relates to unpriweznents in carries a bevel-wheel 7c crank motion.

Upon the motor-casing a is journalcd, by means of the ball-bearings Z m0, the two-part hub n of the (.lriving-whccl, which serves at the sametime as lubricating box for all moving parts oi the driving mechanismrequiring lubrication. Internally there is secured on the hub n abevel-wheel 'r, meshing with the bevel-whecl action to the drivingwhcel.There is fur ther secured to the hub n the sprocket-whecl 7), which isconnected in well-known manner by chain to the foot-pedal axle. Thecyliners b are provided for the induction and cduction of the powermedium with valvechambers 8, containing the valves t, which are directlyconnected to the frametubing o in suitable manner, whereby the c'cle-frame tubing is used for the conducting o the gases.

' aving now particularly described and ascertained the nature of thesaid invention and in what manner the same is to be performed,

declare that what I claim is- In. a motor-cycle, in combination, twomotors oppositely disposed within the driving-wheel, the common middleplane of which coincides with the axis of rotation of the driving-wheel,a crank-shaft common to both said motors in themiddle plane of thedriving wheel, and two fly-wheels within the hub of the driving-wheels,substantially as described.

2. In aniotor-cycle, in combination, a fixed hollow driving-wheel axle,and motor-cylinders, one at either end of said hollow axle,substantially as described.

3. Ina motorcycle, in combination, a fixed hollow driving-wheel axle, amotor-cylinder at either end of said hollow axle, pistons therein,pitmen, and a crank-shaft cranked to one hundred and eighty degrees,substantially as described.

' 4. In amotor-cycle,in combination, afixed hollow driving-wheel axle, amotor-cylinder at either end thereof, pistons therein, a shaft crankedto one hundred and eighty degrees, pitmen connecting said pistons tosaid crankshaft, and a fly-wheel at either end of said crankshaft,substantially as described.

5. In a motor-cyclein combination, a fixed hollow driving-wheel axle, amotor-cylinder at either cnd thereof, pistons therein, a shalt hundredand eighty degrees, pitmen connecting said pistons to said crankfortransmitting the 7:, for transmitting the crank shaft, aifly-wheel ateither end of said crankcranked to one hundred and eighty degrees,

shaft, trunnions on said fly-wheels, and bear-- in s in saidhollow-driving-wheel axle for journa ing said triunmojns, substantiallyas set forth. I I i 6. In a motor-cycle in combination, a fixed hollowdriving-wheel axle, a motor-cylinder at either end thereof, pistonstherein, a shaft cranked toone hundred and eighty degrees,

pitmen connecting said pistonsto said crankshaft, a flywheel at eitherend of said crank shaft, trunnions on said flywheels, bearingswin saidhollow driving-wheel axle for journalin said trunnions, and abevel-wheel on one ofsai' trunnions outside of said fixed hollow axle,

- subtantially as described.

-bevel-wheel, subst anti 7. In a motor-cycle in combination, a'fixedhollow driving-Wheel axle, a motor-cylinder, at either end'thereof,pistons therein, a shaft cranked to one hundred and eighty degrees,

pitmenconnecting said istons to said crank-- shaft, afiy-wheel at eit erend of said crank.

shaft, truhnions on said fly-wheels, bearin sin said hollowdriving-.w'heel axle for journa 'n I said trunnions, a bevel-wheel on one. of saitrunnions outside of said fixed hollow axle, a 'two particasingsurroundin said drivingwheel axle and rigidl secure, to the drivinwheel, ball-bearings tween said fixed ax e and said two-part casing, anda bevel-wheel on said casing meshina with the first said I a1 yas-described. 8. In a motor-cycle in combination, a fixed hollowdriving-wheel axle, a motor-cylinder at either'end thereof,"p'istonstherein, a shaft I dis osed .tia 1y as escribed.

-1O. In a motor-cycle in combination, a

pitmen connecting said pistons to said crankshaft, a fly-wheel at eitherend of said crankshaft, trunnions on said fiyewheels, bearin s-in saidhollow. driving-wheel axle forjourna 'ng, 40

said trunnions, a bevel-wheel on one of said trunnions outside of saidfixed hollow axle, ,a two part casing surroundin said drivingwheel axleand rigidly secure to the drivin wheel, ball-bearings between said fixedax e 45 and said two-p art casing, a bevel-wheel on said casing meshingwith the firstsaid bevel-wheel,

- "anda' sprocket-wheel rigidl secured to said two-part casing,substantial y as described.

hollow driving-wheel axle, a 'motor cylinder at either end of said axle,and symmetricallyas-cond'ucting' passages, substan fixed hollowdriving-wheel axle, a motor-cyL' inder' at either end of said axle,symmetrically-disposed gas-conductingpassages, valvechambers 1ncommunication with said-gas passages, valves therein, and means forsecu'r- 6o.

ing said valve chambers directly to the hollow frame-tubing,substantially as set forth.

- In testimony whereof I have signed my name to this specification in:the presence of two subscribing witnesses.

EDUARD BUTIKOFER. Witnesses:

' E. G. Cor,

T. G. SeHEs ER.

" 9. In a motor-cycle, in combination afixed- 5o

